A5035318439- Indoor Air Quality and Microbial Exposure
- Graphene and Nanomaterials Applications
- Spectroscopy and Chemometric Analyses
- Bone Tissue Engineering Materials
- Diamond and Carbon-based Materials Research
- Anodic Oxide Films and Nanostructures
- Dental materials and restorations
- Bacillus and Francisella bacterial research
- Atmospheric chemistry and aerosols
- Air Quality Monitoring and Forecasting
- Nanoparticles: synthesis and applications
- Photodynamic Therapy Research Studies
- Analytical Chemistry and Chromatography
- Spectroscopy Techniques in Biomedical and Chemical Research
- Surface Modification and Superhydrophobicity
- Additive Manufacturing and 3D Printing Technologies
- Porphyrin and Phthalocyanine Chemistry
- Metal and Thin Film Mechanics
- Dental Research and COVID-19
- Nanoporous metals and alloys
- Carbon and Quantum Dots Applications
- Laser Applications in Dentistry and Medicine
- Photochromic and Fluorescence Chemistry
- Engine and Fuel Emissions
- Photonic Crystals and Applications
Military University of Technology in Warsaw
2015-2025
Maksymilian Pluta Institute of Applied Optics
2019
Fluorescence is the most sensitive spectroscopic method of analysis and fluorescence methods. However, classical requires sampling. There are new needs for real-time analyses biological materials, without need This article presents examples proprietary applications laser-induced (LIF) in medicine with such A classic example photosensitizers using photodynamic treatment (PDT). The level kinetics accumulation excretion sensitizers body examined, as well optimal exposure time after application...
Wood modification with graphene oxide can give it unique features characteristic of other materials. However, the durability newly acquired is great importance. To better understand them, worth conducting an in-depth analysis structural changes that occur in wood under influence oxide. As part research, was impregnated aqueous dispersion. using two methods: single vacuum and pressureless ultrasound. Laser-assisted ionization spectroscopy (LIBS) used to determine elements, mainly carbon,...
Wood–plastic composites (WPCs) are an excellent example of materials that, thanks to the possibility using recycled raw materials, directly fit into circular economy. The properties and quality depend largely on appropriate selection proportions components. These studies included produced basis HDPE-recycled matrix filled with sawdust or bark particles in amounts 40%, 50%, 60%. Their structural features were analyzed for composites. It was shown that a smaller share filler ensures its more...
This paper presents the results of research on impact graphene selected bacterial strains. Graphene oxide, from which is made, has mainly bacteriostatic properties. Therefore, main goal this was to determine possibility using as a carrier medicinal substance. Studies degree inhibition were performed
This publication presents the effect of hypochlorous acid dry mist as a disinfectant on selected bacteria, viruses, spores, and fungi well portable Microlife OXY 300 finger pulse oximeters electronic systems Raspberry Pi Zero microcomputers. The impact microbiological agents was assessed at concentrations 300, 500, 2000 ppm HClO according to PN-EN 17272 (Variant I). Studies fog components were carried out in an aerosol chamber 500 two models consisting 30 II) 90 fogging cycles III). Each...
This paper presents the results of an analysis carbon (in form graphene oxide) deposited on surface threads made from stainless steel 316 and titanium alloy Ti6Al4V used in orthopedics using Laser Induced Breakdown Spectroscopy (LIBS). The aim article is to indicate possibility LIBS spectra for study thin layers, including derivatives other elements. Stratigraphic measurements allowed detection differences peaks individual elements, not only layer itself native material, but also...
This paper presents the results of interaction graphene oxide (GO) on MDA-MB-231 and SW-954 cancer cell lines. The tests were carried out in two variants. In first one, GO was sprayed a Petri dish then, lines cultured. second variant, cells covered with an aerosol containing GO. both variants, incubated tested every 24, 48, 72 h. After each time period, viability surface morphology measured. after h showed that coating caused reduction by 52.7% 26.4% for lines, respectively, respect to...
The main aim of the study was to implement most reliable method measuring degrees conversion during photopolymerization dental fillings. Contrary methods used so far, is based only on comparison with monomer absorbance spectrum without reference bands. Another prepare a comparative analysis polymerization kinetics resins under various light sources and different environmental conditions (irradiance, dose, temperature), estimation (DC) being metric. HRi Universal Enamel (UE2) Dentine (UD2)...
Anna Drzewicz*a, Aneta Bombalskab & Marzena Tykarskaa a Institute of Chemistry, Military University Technology, Warsaw, Polandb Optoelectronics, Poland
This work presents new rod-like compounds being fluorene derivatives linked with other parts of the core at 2 and 7 positions – its synthesis properties. The moiety is located in central position four rings molecular core. chain system most cases was symmetrical limited to pentyl or hexyl chains. To study influence lateral substituents on mesomorphic properties two types have been incorporated, centrally various short alkyl groups fluorene's 9,9 outer fluorosubstitutions side phenyl rings....
In this work, pine and birch wood were modified by graphene oxide using a single vacuum impregnation method. The research results indicate that the of with increases crystallinity cellulose in both wood, increase observed case was more significant than pine. FT-IR analyses samples impregnated showed changes intensity absorption bands 400-600, 700-1500 cm-1, 3200-3500 cm-1 peak separation 1102 which may new C-O-C connections. birch, only some differences noticed related to vibrations OH...
This paper presents the results of studies on effects four types aerosols containing an aqueous dispersed suspension graphene oxide (GO) and with addition curcumin (GO + C), silver nanoparticles Ag), hypochlorous acid HClO) selected structural biological properties. Structural were carried out using electron microscopy, including a scanning microscope (SEM), transmission microscopy (STEM), laser emission spectroscopy (LIBS), absorption spectra in infrared range attuned total reflectance...
The aim of the presented study was an analysis two apatite coatings: hydroxyapatite (HA) and octacalcium phosphate (OCP) as coatings materials for metallic implants. Both layers were deposited by means PLD method. As a target material, synthetic, powdered pressed used. HA on 316L steel substrate in temperature ranges obtaining different 150±30°C 430±30°C OCP HA, respectively. intermediate layer, nanocrystalline diamond layer (NCD) deposited. Examined calcium tested adhesion osteoblast cell...
The aim of the presented study was a comparative analysis polymerization kinetics dental resin-based composites currently used in dentistry different environmental conditions (irradiance, activation time, layer thickness). photopolymerization eleven resins were investigated using Woodpecker LED source. DC measured by FTIR transmission mode and attenuated total reflection (ATR) from 5 s to 7 days. In mode, spectra parallel optical layers (about 0.2 mm thick) samples placed between KBr...